1 files changed, 55 insertions, 0 deletions
diff --git a/common.mk b/common.mk
new file mode 100644
index 0000000..1758acd
--- /dev/null
+++ b/common.mk
@@ -0,0 +1,55 @@
+# Compiler and default flags
+CC ?= gcc
+CFLAGS ?= -O2
+
+
+# Defaults for directories
+ROOTDIR ?= $(shell pwd)
+
+INCDIR ?= $(ROOTDIR)
+BINDIR ?= $(ROOTDIR)
+LIBDIR ?= $(ROOTDIR)
+OBJDIR ?= $(ROOTDIR)
+DEPENDDIR ?= $(ROOTDIR)
+
+CXXFLAGS += $(addprefix -I ,$(INCDIR))
+CFLAGS += $(addprefix -I ,$(INCDIR))
+
+# Source files in this directory
+SRC = $(wildcard *.cpp)
+SRCC = $(wildcard *.c)
+
+# Corresponding object files 
+OBJ = $(addprefix $(OBJDIR)/,$(SRC:.cpp=.o))
+OBJ += $(addprefix $(OBJDIR)/,$(SRCC:.c=.o))
+
+# Corresponding dependency files
+DEPEND = $(addprefix $(DEPENDDIR)/,$(SRC:.cpp=.d)) 
+DEPEND += $(addprefix $(DEPENDDIR)/,$(SRCC:.c=.d)) 
+
+# This makes Verbose easier. Just prefix $(Q) to any command
+ifdef VERBOSE
+	Q ?= 
+else
+	Q ?= @
+endif
+
+###############################################################
+# Target definitions
+
+# Target for automatic dependency generation
+depend: $(DEPEND) $(DEPENDC);
+
+# This rule generates a dependency makefile for each source
+$(DEPENDDIR)/%.d: %.c
+	@echo -e "DEPEND \t$<"
+	$(Q)$(CC) $(addprefix -I ,$(INCDIR)) -MM -MF $@ \
+		-MT $(OBJDIR)/$(<:.c=.o) -MT $@ $< 
+
+# This includes the automatically 
+# generated dependency files
+-include $(DEPEND)
+
+$(OBJDIR)/%.o: %.c
+	@echo -e "CC \t$<"
+	$(Q)@$(CC) $(CFLAGS) -c -o $@ $<